#include<stdio.h>
int main()
{
    int i,j,k,l,m,n;
    printf("Input two FENSHU:\n");
    scanf("%d/%d,%d/%d",&i,&j,&k,&l);
    m=zxgb(j,l)/j*i;
    n=zxgb(j,l)/l*k;
    if(m>n)printf("%d/%d>%d/%d\n",i,j,k,l);
    else if(m==n)printf("%d/%d=%d/%d\n",i,j,k,l);
    else printf("%d/%d<%d/%d\n",i,j,k,l);

}
zxgb(a,b)
int a,b;
{
    long int c;
    int d;
    if(a<b)c=a,a=b,b=c;
    for(c=a*b;b!=0;)
    {
        d=b;
        b=a%b;
        a=d;
    }
    return ((int)c/a);
}